Commit Graph

47 Commits

Author SHA1 Message Date
Mark Salyzyn ffbd86ff25 liblog: Add __android_log_security()
Return non-zero if ro.device_owner is set and not false
and persist.logd.security is true.

Bug: 26029733
Change-Id: Ie82ae11ae35e9c79017b6e873fefb39d79a1d4fe
2015-12-08 11:28:27 -08:00
Mark Salyzyn f8e546e609 liblog: Support for ANDROID_LOG_WRAP mode flag on reader
If ANDROID_LOG_WRAP is specified, add timeout=3600 to the reader
request. logd will comply by going to sleep with the socket open.
If the start time is about to wrap or get pruned in the specified log
buffers, then wakeup and dump the logs; or wakeup on timeout,
whichever comes first.

Bug: 25929746
Change-Id: I531b4317a20abcf3ba87d78c68fa2f268a4488ab
2015-12-07 14:24:02 -08:00
Mark Salyzyn ba7a9a016b logd: liblog: logcat: switch to android_log_clockid() (2)
android_log_timestamp returns the property leading letter,
it is better to return a clockid_t with android_log_clockid()

Bug: 23668800
Change-Id: I38dee773bf3844177826b03a26b03215c79a5359
2015-12-07 18:45:31 +00:00
Mark Salyzyn 9e18cdcebd Revert "logd: liblog: logcat: switch to android_log_clockid()"
This reverts commit 77b5696b1d.

Change-Id: I7711bf1a7e3f72ed29a2498d7287b725a0e624bd
2015-12-07 18:30:58 +00:00
Mark Salyzyn 77b5696b1d logd: liblog: logcat: switch to android_log_clockid()
android_log_timestamp returns the property leading letter,
it is better to return a clockid_t with android_log_clockid()

Bug: 23668800
Change-Id: I3c4e3e6b87f6676950797f1f0e203b44c542ed43
2015-12-04 14:49:19 -08:00
Mark Salyzyn 2d2e0a5c5e liblog: resolve deadlocks
Although ever present, an increased regression introduced with
commit b6bee33182 (liblog: logd:
support logd.timestamp = monotonic).

A signal handler can interrupt in locked context, if log is written
in the signal handler, we are in deadlock. To reduce the contention
and chances for this problem separate out timestamp lock from is
loggable lock to reduce contention situations. Provide a best-guess
response if lock would fail in timestamp path.

Use a common lock() inline within each module, with a comment speaking
to the issues surrounding calling a function that has a mutex within
a signal handler.

ToDo: Hold off signals temporarily in mainline, restart when unblock.
      Can not use pthread_sigmask(SIG_BLOCK,,) as it breaks AtCmd.

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 25563384
Change-Id: I47e2c87c988c3e359eb9eef129c6a3a08e9eedef
2015-11-19 13:14:16 -08:00
Mark Salyzyn c2e7d4965f Revert "liblog: resolve deadlocks"
This reverts commit 7a2a307192.

Bug: 25693940
Change-Id: I9a7c926289e972f80c03c92e33535e1dedaa7381
2015-11-16 19:00:41 +00:00
Mark Salyzyn 7a2a307192 liblog: resolve deadlocks
Although ever present, an increased regression introduced with
commit b6bee33182 (liblog: logd:
support logd.timestamp = monotonic).

A signal handler can interrupt in locked context, if log is written
in the signal handler, we are in deadlock. Block signals while we
are locked. Separate out timestamp lock from is loggable lock to
reduce contention situations. Provide a best-guess response if
lock would fail in timestamp path.

Bug: 25563384
Change-Id: I6dccd6b99ebace1c473c03a785a35c63ed5c6a8a
2015-11-12 15:39:04 -08:00
Mark Salyzyn 500afc7532 liblog: add android_log_timestamp() private function
Change-Id: Iefbea3b1be2f97cfdeb35e5330e5495e0337215b
2015-10-29 14:23:42 -07:00
Mark Salyzyn 4cbed02e44 liblog: logcat: add epoch and monotonic format modifiers
- '-v epoch' prints seconds since Jan 1 1970
- '-v monotonic' print cpu seconds since start of device
- '-T sssss.mmm...' as alternate tail time format

NB: monotonic is a best estimate and may be out by a few ms
    given the synchronization source clue accuracy.

Bug: 23668800
Change-Id: Ieb924b6d3817669c7e53beb9c970fb626eaad460
2015-10-29 14:23:42 -07:00
Mark Salyzyn f28f6a9ba2 liblog: logcat: Add year and zone to date on each line
- '-v year' modifier adds the four digit year prefix
- '-v <timezone>' modifier sets and prints the timezone suffix
- Only promise in logcat to support UTC as a timezone since
  all others are based on the configured environment
- '-v zone' modifier toggles the timezone suffix on or off
- '-T YYYY-MM-DD HH:MM:SS.mmm...' format is added

Bug: 23668700
Change-Id: I7521c1efb7455dc9a25434fce72a69a65dcf72ea
2015-09-24 14:49:55 -07:00
William Luh 964428c0a6 Add macro to call event logger for errors.
Bug:23180694
Change-Id: I566a290334345f48013029534efef3e08e726e40
2015-08-26 15:59:06 -07:00
Mark Salyzyn b932b2f8ba liblog: logcat: Add printable format modifier
- added printable format modifier:
  logcat -v printable
- opencoded borrowed individual utf8 validity checking algorithm
  from utf8_length() in libutils/Unicode.cpp
- if considered basic one-character ASCII, use popular \x escape
  sequences for non-printable
- logprint convert to C comments to drop mixed-mode

Bug: 19000361
Change-Id: I122a5b8fb41216fc0bc816178c0b768f3df56586
2015-06-04 08:27:29 -07:00
Mark Salyzyn e1f2004ecc logcat: liblog: Add "usec" format argument
- Add additional 3 digits of time precision for time output
  adding in the reporting of usec
- Remove trailing space in header file

Change-Id: Ifb560850b8e01080e126fbaeab640db71cce3eea
2015-05-12 15:51:46 -07:00
Mark Salyzyn 440e109d64 liblog: Add kernel log id
Change-Id: I53002f05a8bdf8d67e1d761c56c8761d3b534a76
2015-05-06 08:54:59 -07:00
Jeff Brown 44193d9eae Add float support to binary event log.
Bug: 20664753
Change-Id: Ib4752bd785496dab5bb4d4979d5d80f662adbdfa
2015-04-28 18:20:48 -07:00
Mark Salyzyn 4ff2545525 log: Add check for LINT_RLOG
In order to make it easier to find radio system logging
mistakes, if LINT_RLOG is defined we will remove all the
definitions for ALOG* and SLOG*, as well as the log ids
to introduce compile and link errors.

Bug: 20143912
Change-Id: I1511bdce75213f3a5bacdbc4f2ab315aa1fa56fc
2015-04-10 11:28:16 -07:00
Mark Salyzyn 6eef417119 liblog: add pstore read
Used to pull the Android log messages after a reboot. Adding
an ANDROID_LOG_PSTORE flag to the mode parameter in calls to
android_logger_list_alloc() and android_logger_list_alloc_time().
The side effects are that android_logger_clear() and
android_logger_list_read() will react with the user space
pstore driver. Forms a companion to the pstore console logs.

Change-Id: I7bb07b87b3bf73f059a21af3f810af37c7715b6d
2015-02-26 06:37:35 -08:00
Mark Salyzyn 2d3f38a6b8 liblog: introduce ANDROID_LOG_* flags
Move away from using POSIX open(2) flags and introduce ANDROID_LOG_* flags to
replace them. Add security by preventing random mode flags from getting into
underlying POSIX calls. ANDROID_LOG_* flags overlap POSIX O_* flag definitions.

Change-Id: Ib32bb64c287e8bf150be62242e1ba46bb37839fc
2015-02-25 17:44:18 +00:00
Andreas Gampe f45bbe496f log.h: Fix typo
Change-Id: I6b5e9bc9d40e5e5ecf9f50f7392675391e6f18e6
2015-02-09 16:13:33 -08:00
Mark Salyzyn 1df92e523e log.h: wrap android_testLog around __android_log_is_loggable
- take android_testLog from the bonepile and resurrect
- android_testLog is used, and makes sense in its current context
  as a holder for Android Logging policy.
- Default level when not specified is ANDROID_LOG_VERBOSE for
  eng and userdebug, and ANDROID_LOG_DEBUG for user.

NB: Properties, which are associated with __android_log_is_loggable are
not to be adjusted in user release; it would be useful at that juncture to
return a constant of (0) for VERBOSE, and a (1) for others on user builds.
Or default level to drop to ANDROID_LOG_DEBUG for all in future.

Bug: 17760225
Change-Id: I420b5b8a94d53d664c6a8b13546ebc424a147923
2015-02-09 15:37:32 -08:00
Mark Salyzyn f5af82edf3 log.h: deprecate CONDITION
- replace CONDITION with __predict_false to match with bionic

Change-Id: Ica23fe41cf9a7ea5eaf1b8552780af9ec7827808
2015-02-09 15:25:48 -08:00
Mark Salyzyn 956870518e liblog: add __android_log_is_loggable()
- Add new liblog API __android_log_is_loggable(prio, tag, def)
- future plan to integrate this into the runtime checks and into
  the logd daemon for filtration. Inert for now.

Bug: 17760225
Change-Id: I16395b4d42acc08f0209f55a1cbf87b0b2112898
2015-02-09 22:12:59 +00:00
Yabin Cui 4a6e5a3b64 Kill HAVE_PTHREADS.
Bug: 19083585
Change-Id: Ic09eb3dd250bc5c5b63cac7998f99f5fa007f407
2015-01-27 14:23:22 -08:00
Mark Salyzyn decd92945f liblog: Add log_time += operator
Change-Id: I1d2987b6cb333fc344d4fee1b7bb25f32a4143c6
2015-01-05 16:27:54 +00:00
Elliott Hughes 111e3d3d9c Only Windows doesn't have <sys/uio.h>.
This should probably be in libcutils instead, so code that needs to
care about Windows can use readv/writev.

Change-Id: I7c2ceec3f742cee0e44f69fd4c88459376bd0e08
2014-11-25 13:27:43 -08:00
Pierre Zurek ead88fca6e liblog: logcat: colored output.
This patch adds a new '-v color' option to logcat so that the output is
colored similar to the ones in DDMS. Simply type "adb logcat -v color"
to use it. Works well with bash in gnome-terminal. NO GUARANTEE IT WILL
WORK ON A NON xterm STYLE TERMINAL.

Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Change-Id: I9189c5f27fed991579edbcbc6834536eb8112152
2014-09-11 19:04:17 -07:00
Nick Kralevich 2a4d05a4e3 implement LOG_EVENT_STRING
Implement LOG_EVENT_STRING, so that native code can create new
event log entries. This is needed to support logging SELinux denials
to the event log.

Change-Id: I6a269a832bc2f5e5da6c9dbd169ed2f901b49166
2014-07-01 12:22:04 -07:00
Mark Salyzyn 4887842c92 include: cleanup for -Wsystem-header
- warnings as errors, or errors introduced when -Wsystem-header
  was experimentally introduced.

Change-Id: Ia8f5b3c1c1096e191741223d52526aa48c7f1cc4
2014-05-23 15:09:57 -07:00
Mark Salyzyn 3cb5498785 logd: 64-bit compile issue
- ULONG_MAX is used against an uint32
- Add tv_sec_max and tv_nsec_max constants to log_time

Change-Id: Ic86cd7b0680868ad0536198b71a34cb19134fc22
2014-05-02 14:16:00 -07:00
Mark Salyzyn 99f47a9e7c logd: liblog: logcat: debuggerd: Add LOG_ID_CRASH
Change-Id: Iea453764a1a4fc1661f461f10c641c30150e4d20
2014-04-16 15:38:50 -07:00
Mark Salyzyn 1c95047939 logd: liblog: logcat: enable prune features for user
- Enable whitelist, blacklist and logsize tuneables for user

Change-Id: Id0c283844c71c5263a8cfbebf2e550f7ac415858
2014-04-02 13:12:04 -07:00
Mark Salyzyn fa3716b250 logd: liblog: logcat: Arbitrary time to tail
Change-Id: I10e8d92c933e31ee11e78d2d1114261a30c4be0e
2014-03-14 10:23:51 -07:00
Mark Salyzyn dfa7a07f5b logd: liblog: logcat: Add LogWhiteBlackList
- liblog android_logger_get_log_size and android_logger_get_readable_size
  adjusted to return long instead of int because of -G flag extending range

NB: ifdef'd only for userdebug and eng builds

- liblog Add android_logger_[sg]et_prune_list and android_logger_set_log_size
- logcat Add -P, -p and -G flags
- logd Add LogWhiteBlackList and configurable log size

(cherry picked from commit 18a5432158)

Change-Id: I1572338c1b34bd968ad7867857ef708156ec3b6a
2014-03-13 14:48:07 -07:00
Mark Salyzyn 34facab86b logd: liblog: logcat: Add Statistics
- logd add statistical collection and formatting
- liblog add android_logger_get_statistics call
- logcat add -S flag
- logcat add -b all

(cherry picked from commit 51a29c8dc4)

Change-Id: I521753b1969ecd4590c956aeeb1557d101059d67
2014-03-13 14:47:58 -07:00
Mark Salyzyn 7e2f83c0bc logd: liblog: 64-bit issues
- structure packing
- move towards log_time from struct timespec
- extend log_time to cover differences between
  log_time and struct timespec

Change-Id: I106ed0b609917306d170044054b5b32645f2a295
2014-03-05 16:12:28 -08:00
Mark Salyzyn 154f4608aa liblog: enable logging to logd.
* Modify liblog to send all messages to the new syslog user
  space daemon.

Original-Change-Id: I0ce439738cd921efb2db4c1d6a289a96bdbc8bc2
Original-Change-Id: If4eb0d09409f7e9be3eb4bb7017073dc7e931ab4
Signed-off-by: Nick Kralevich <nnk@google.com>

* Add a TARGET_USES_LOGD make flag for BoardConfig.mk to manage
  whether logd is enabled for use or not.
* rename syslog to logd to avert confusion with bionic syslog
* Add fake log support back in
* prefilter for logging messages from logd
* Fill in timestamps at logging source
* update abstract log reader
* switch from using suffix for id to v3 format
* log a message when creating devices that a deprecated interface
  is being utilized.

Signed-off-by: Mark Salyzyn <salyzyn@google.com>

(cherry pick from commit 099e2c1f6f706a8600c1cef74cce9066fc315480)

Change-Id: I47929a5432977a1d7235267a435cec0a7d6bd440
2014-02-28 13:49:11 -08:00
Mark Salyzyn 0175b0747a logd: initial checkin.
* Create a new userspace log daemon for handling logging messages.

Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>

* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions

Signed-off-by: Mark Salyzyn <salyzyn@google.com>

(cherry picked from commit 3e76e0a497)

Author: Nick Kralevich <nnk@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
2014-02-26 09:52:35 -08:00
Colin Cross 810d19f99a log: add compile-time checking when ALOGV is disabled
Wrap the call in a if (0) when verbose logging is disabled
to provide compile time checking.

Also add a printf format attribute to the function to warn
if parameters are incorrect.

Change-Id: Ic77edeadcc4d886ca0f8b434f8550e18e22d5901
2014-02-09 21:59:24 -08:00
Mark Salyzyn 318bb72601 liblog: Add const pedantics
(cherry picked from commit 9e03ce45f9)

Change-Id: I819695b778ac08fcfc9b1a87f3f86e5715f53084
2014-01-27 15:19:53 -08:00
Mark Salyzyn 819c58a8ca liblog: Add liblog test suite
(cherry picked from commit 8d1fdb5093)

Change-Id: Ia457d518b4e7ff37e840336ff0c48583709700d4
2014-01-27 15:17:39 -08:00
Mark Salyzyn 1345f38e44 liblog: deprecate export LOGGER ioctl definitions
(cherry picked from commit 2e44a9ea25)

Change-Id: I150cad9309255bec2b8bc7230c744e9bbb1b9578
2014-01-27 15:16:43 -08:00
Mark Salyzyn e9c4196980 liblog: deprecate export of LOGGER_LOG_* defines
(cherry picked from commit 73459a5c87)

Change-Id: I263af8e889f8f2ad91b91757caf90a4d17823dab
2014-01-27 15:16:04 -08:00
Mark Salyzyn 168021c282 liblog: resolve build warning messages
(cherry picked from commit 153b370624)

Change-Id: Icc6f1f2c926a008efc4df71022cfde8d0e285880
2014-01-27 15:15:05 -08:00
Mark Salyzyn f387fa5df0 liblog: drop use of sys/cdefs.h
(cherry picked from commit c96a44888a)

Change-Id: I44ea5d6b572e3712c301e6ebf4b34e6225d7e18b
2014-01-27 15:13:17 -08:00
Mark Salyzyn 4295841ebe liblog: Interface to support abstracting log read
(cherry picked from commit 6c1b07fbbd)

Change-Id: Iedc55c1316029b4bb72f51cc656b53b0e3f90aee
2014-01-27 15:10:39 -08:00
Colin Cross 9227bd3855 Move liblog headers to system/core/include/log
Move the liblog headers to log/ instead of cutils/ to complete
the separation of libcutils and liblog.  cutils/log.h still
exists and includes log/log.h in order to support the many existing
modules that use cutils/log.h.

Change-Id: I2758c9f4aedcb809ca7ba8383d0f55041dd44345
2013-07-24 12:32:39 -07:00